<template>
    
    <div class="mui-numbox" data-numbox-min='1' style="height:25px">
					<button class="mui-btn mui-btn-numbox-minus" type="button">-</button>
					<input id="test" class="mui-input-numbox" type="number" :value="initcount" @change="countChanged" ref="numbox" readonly />
					<button class="mui-btn mui-btn-numbox-plus" type="button">+</button>
	</div>
    <!-- 分析：子组件什么时候把数据传递给父组件 -->
    <!--监听文本框的change事件  -->
</template>

<script>
import mui from '../../lib/mui/js/mui.min.js'
export default {
    mounted() {
        //初始化数字选择框
        mui(".mui-numbox").numbox()
    },
    methods:{
        countChanged(){
            //数量改变了
            //每当数量改变，立即把最新的数量同步到store中，覆盖之前的数量值
            this.$store.commit("updateGoodsInfo",{
                id:this.goodsid,
                count:this.$refs.numbox.value
            })
        }
    },
    props:["initcount","goodsid"]
}
</script>

<style lang="scss" scoped>

</style>


